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How to use dynSmagorinsky model correctly ?

Posted July 9, 2014 at 18:47 by rkc.cfd
Tags sgs, turbulence

This is a good reference for why not to use upwind schemes for LES

Quote:
Originally Posted by alberto View Post
I think it is a tradeoff between stability and accuracy. In a finite volume code, your global accuracy is second order anyway. If you use higher order schemes for the convection term you can have some benefit, but you have also to evaluate how important this benefit compared to the standard linear scheme.

I'll try to give you some information of why central schemes are generally preferred in LES and then
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